The HP/Compaq LaserJet 4000 uses - - memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type - -
Base Memory 4MB (Non-removable) + 0MB (Removable) = 4 or 8MB total 4MB (Removable) = 4 or 8MB total
Upgrade Slots 3 Sockets
Maximum Memory 132MB using two 64MB modules
Maximum Module Size 44MB
CPU & Chipset ~
Bus Architecture ~
Manufacturer Part Numbers
  • C3913A
  • C7842A
  • C7843A
  • C7845A

We currently do not offer any upgrades or upgrades are currently unavailable for purchase online. Please contact us to order upgrades for this device.


Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KTH-LJ4000/8 8MB SDRAM Module Kingston
KTH-LJ4000/16 16MB SDRAM Module Kingston
KTH-LJ4000/32 32MB SDRAM Module Kingston
KTH-LJ4000E/8 8MB EDO Module Kingston
KTH-LJ4000E/16 16MB EDO Module Kingston
KTH-LJ4100/8 8MB SDRAM Module Kingston
KTH-LJ4100/16 16MB SDRAM Module Kingston
KTH-LJ4100/32 32MB SDRAM Module Kingston
KTH-LJ4100/64 64MB SDRAM Module Kingston
KTH-LJ8000/64 (Replaced by KTH-LJ4100/64) Kingston